CVE-2018-12397

LOW

Description

A WebExtension can request access to local files without the warning prompt stating that the extension will "Access your data for all websites" being displayed to the user. This allows extensions to run content scripts in local pages without permission warnings when a local file is opened. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.

References

http://www.securityfocus.com/bid/105718

http://www.securitytracker.com/id/1041944

https://access.redhat.com/errata/RHSA-2018:3005

https://access.redhat.com/errata/RHSA-2018:3006

https://bugzilla.mozilla.org/show_bug.cgi?id=1487478

https://lists.debian.org/debian-lts-announce/2018/11/msg00008.html

https://security.gentoo.org/glsa/201811-04

https://usn.ubuntu.com/3801-1/

https://www.debian.org/security/2018/dsa-4324

https://www.mozilla.org/security/advisories/mfsa2018-26/

https://www.mozilla.org/security/advisories/mfsa2018-27/

Details

Source: MITRE

Published: 2019-02-28

Updated: 2019-03-01

Type: CWE-200

Risk Information

CVSS v2.0

Base Score: 3.6

Vector: AV:L/AC:L/Au:N/C:P/I:P/A:N

Impact Score: 4.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3.0

Base Score: 7.1

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Impact Score: 5.2

Exploitability Score: 1.8

Severity: HIGH